JP3079611B2 - Ridlock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Object of the invention]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod lock device capable of holding a lid body for opening and closing an opening such as a fuel supply port formed in a vehicle body at a closed position.

[0003]

2. Description of the Related Art Hitherto, as this kind of rod apparatus, one disclosed in Japanese Utility Model Laid-Open Publication No. Sho 58-111762 is known. This includes a vehicle body, a lid body for opening and closing an opening formed in the vehicle body, a mounting surface formed on the vehicle body, a locking mechanism fixed to the mounting surface and holding the lid body in a closed position, and a locking mechanism. And a driving mechanism for operating the locking mechanism to release the holding of the lid body at the closed position. The driving mechanism is coaxial with the locking mechanism and held by the locking mechanism.

[0004]

However, in the above-described lid lock device, the drive mechanism is disposed at a position separated from the mounting surface. For this reason, the weight of the drive mechanism causes a large moment load to be applied to the locking mechanism and the mounting surface, and the locking mechanism and the mounting surface must be greatly reinforced. As a result, the weight of the vehicle is increased.

Therefore, an object of the present invention is to reduce the weight increase of a vehicle.

[0006]

Configuration of the Invention

[0007]

The technical measures taken in the present invention to solve the above-mentioned technical problems are lidro.
A lock mechanism and a drive mechanism of the locking device with a housing,
The housing is superposed in the thickness direction and the housing is
A cover that cooperates to form an interior space;
The tip protrudes from the internal space.
A shaft and in the interior space above the shaft
And the axis is perpendicular to the axis of the shaft, and
A motor arranged to be parallel to the mounting surface,
The motor and the shaft are rotatably disposed in the internal space.
A gear mechanism linked to the shaft;
A shaft disposed between the shaft and the housing;
And a spring that always urges the protruding direction
That's what we configured .

[0008]

The above technical means operates as follows. The drive mechanism is arranged at a position close to the mounting surface. As a result, the moment load due to the weight of the locking mechanism and the driving mechanism applied to the mounting surface can be reduced. As a result, the locking mechanism and the mounting surface do not need to be reinforced and can be formed of a light material such as resin. Therefore, the weight of the vehicle is relatively reduced.

[0009]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the vehicle body 1 has an opening 2 serving as a supply port to a fuel tank (not shown). A lid body 3 that opens and closes the opening 2 is rotatably supported on the vehicle body 1, and the lid body 3 is flush with the vehicle body 1 in a closed position where the opening 2 is closed. A resin panel 4 is fixed to the vehicle body 1, and a locking mechanism 5 for holding the lid body 3 in the closed position is fixed to the panel 4.

Next, the lock mechanism 5 will be described.

As shown in FIGS. 1 to 4, the case 6 has a resin housing 7 and a resin housing which is superposed on the housing 7 in the thickness direction (vertical direction shown in FIG. 2) and fixed by ultrasonic welding or the like. And an inner space 10. A shaft 11, a motor 12, and a gear mechanism 13 are provided in the internal space 10.

The shaft 11 is disposed on the case 5 via a guide member 14 so as to be able to advance and retreat. This shaft 11
Has a tip protruding outside from the internal space 10 in the case 5,
Engages with an engagement recess 3a formed in the lid body 3,
The rear end is a handle 1 for emergency operation, which is provided via a wire 15 in a vehicle room or a trunk room (not shown).
6. As shown in FIGS. 5 and 6,
The shaft 11 is integrally formed with a stopper portion 11a capable of contacting a stopper member 18 described later, a locking portion 11b for locking a spring 19 described later, and a contact wall 11c linked to a gear mechanism 13 described later. Is formed. Figures 3 and 7
As shown in FIG. 8, a spring 19 is disposed between the engaging portion 11b and the engaging portion 7a formed on the housing 7 in a manner offset from the contact wall 11c. The spring 19 constantly urges the shaft 11 in the protruding direction (the right direction in FIG. 3). As described above, since the spring 19 is arranged in an offset manner with respect to the contact wall 11c, the locking mechanism 5 itself can be downsized in the axial direction of the shaft 11 (the left-right direction in FIG. 1). Thereby, the weight is reduced, the load due to the weight of the locking mechanism 5 itself applied to the case 6 and the panel 4 can be reduced, and the case 6 and the panel 4 can be made of resin. The cover 8 is formed with a protrusion 20 for holding the surface of the spring 19 on the cover 8 side, and the protrusion 20 restricts the rotation of the spring 19 and the shaft 11 in the thickness direction. Further, a guide portion 21 is formed at a position opposite to the spring 19 with respect to the contact wall 11c of the housing 8 as a center. This guide part 2
Numeral 1 guides the forward / backward movement of the shaft 11, and regulates the vertical rotation (vertical direction shown in FIG. 3) of the shaft 11 during the forward / backward movement.

The guide member 14 is made of a metal material.
As shown in FIG. 3, a support portion 14a sandwiched by the housing 7 and the cover 8 and supported by the case 6, and a nut inserted into the through hole 4a formed in the panel 4 and positioned so as to sandwich the panel 4. (Not shown), a screw portion 14b for fixing the locking mechanism 5 to the panel 4, a guide hole 14c for guiding the shaft 11, and a sealing member 17
And a holding portion 14e for holding the stopper member 18 are integrally formed. The sealing member 17 is a screw portion 14b between the guide member 14 and the panel 4.
It is disposed around and seals between the through hole 4a around the screw portion 14b in close contact with the panel 4 and the holding surface 14d to prevent the intrusion of dust, water, gasoline vapor, etc. from the through hole 4c. doing. The stopper member 18 is made of an elastic material such as rubber, and as shown in FIGS. 10 and 11, a holding portion 18a held by a holding portion 14e of the guide member 14.
And the lip portion 18b and the stopper portion 18c are integrally formed. The lip portion 18b is in close contact with the outer peripheral surface of the shaft 11 to seal between the shaft 11 and the guide member 14 around the shaft 11 to prevent dust, water, gasoline vapor and the like adhering to the shaft 11 from entering the case 6. I have. The stopper portion 18c is the stopper portion 1 of the shaft 11.
The shaft 11a can be brought into contact with the shaft 1a and regulates the movement of the shaft 11 in the projecting direction. A projection 18e whose outer diameter is slightly larger than the inner diameter of the holding portion 14e is formed on the outer periphery of the holding portion 18a, and the holding relationship of the holding portion 18a to the holding portion 14e is set as a press-fit state. . As a result, even if a load in the pull-out direction is applied to the stopper member 18 via the lip portion 18b due to the advance and retreat of the shaft 11, the shaft 11 does not come off easily, and the space between the shaft 11 and the guide member 14 is reliably sealed. be able to. Since a predetermined gap 18d is formed between the lip portion 18b of the stopper member 18 and the inner diameter of the holding portion 18a, the gap 18d can be used as a grease pool in cooperation with the guide member 14. . This allows
The operating resistance of the shaft 11 is reduced, and the movement of the shaft 11 can be made smooth. As a result,
The output required of the motor 12 to move the shaft 11 forward and backward can be reduced, and the size and weight of the motor 12 can be reduced. Furthermore, the lip part 1
The wear of the shaft 8b is also reduced, and the seal between the shaft 11 and the guide member 14 around the shaft 11 can be performed for a long time.
As described above, the guide member 14 is formed separately from the case 6, and the support member 14a, the screw portion 14b, the guide hole 14c, the holding surface 14d, and the holding portion 14e are integrally formed. The present invention, in which a material suitable for each of the case 14 and the case 6 can be selected and molded individually, and the number of parts can be greatly reduced,
A bumper reinforcement fixed to a vehicle body via a side member, an energy absorber provided on a load receiving surface side of the bumper reinforcement, and an exterior covering the bumper reinforcement and the energy absorber. In the bumper device for a vehicle having a bumper cover, the energy absorber is disposed at an appropriate position on a load receiving surface side of the bumper reinforcement and has a hollow cross-sectional half having an arc-shaped load receiving portion and a planar mounting portion. Since the load receiving portion has a metal absorbing member that absorbs energy by bending and deforming so as to approach the mounting portion when a load is applied and a load is applied, the bumper device for a vehicle is configured as follows. The effect is as follows.

As shown in FIG. 3, a gear mechanism 13 is rotatably supported by the case 6 and a worm gear 23 fixed so as to rotate integrally with a rotating shaft 22 of the motor 12, which will be described later, and meshes with the worm gear 23. And a wheel gear 24.

As shown in FIG. 12, the worm wheel gear 24 is rotatably supported by a gear shaft 25 formed integrally with the housing 7, and the tip of the gear shaft 25 is inserted into a concave portion 26 formed in the cover 8. Mated. For this reason, the radial load applied to the gear shaft 25 from the worm wheel gear 24 during operation can be shared and received by both the housing 7 and the cover 8, whereby the gear shaft 25 is resinified, that is, integrated with the housing 7. Is possible.

A washer 27 is provided between the housing 7 and the worm wheel gear 24 and between the cover 8 and the worm wheel gear 24, respectively. Thereby, a thrust direction reaction force applied to the worm wheel gear 24 can be received against a load applied to the worm wheel gear 24 during operation, and an increase in the operation resistance of the worm wheel gear 24 due to the reaction force can be prevented. Can be. The teeth 23a of the worm gear 23 and the teeth 24a of the worm wheel gear 24 are formed with teeth having a large advance angle, and the tooth streaks are formed to be inclined toward the cover 8 side. As a result, both the rotation from the worm gear 23 to the worm wheel gear 24 and the rotation from the worm wheel gear 24 to the worm gear 23 become possible, and the worm gear 23 is actuated against the load applied to the worm wheel gear 24 during operation. The reaction force in the radial direction applied to the cover 23 can be converted to the direction toward the cover 8.

As shown in FIGS. 3, 4, 13 and 14, the worm wheel gear 24 is formed with a cam 28 and a pair of projections 29 and 30. The cam portion 28
When the worm wheel gear 24 rotates in one direction, the worm wheel gear 24 can come into contact with the contact wall 11c of the shaft 11.
A holding portion 7b is formed integrally with the housing 7, and the holding portion 7b is formed of a stopper body 3 made of an elastic material such as rubber, which is located on and between the protrusions 29 and 30.
1 is fixed. The protrusions 29 and 30 can contact with the stopper body 31, and the protrusion 29 and the stopper body 3
The rotation of the worm wheel gear 24 in one direction is restricted by contact with the worm wheel gear 24, and the rotation of the worm wheel gear 24 in the other direction is restricted by contact between the projection 30 and the stopper 31. The cam 28 and the projection 30 are integrally formed with a worm
The gear 24 is formed.

[0019] Thus, with one stop body 31C
Ohm wheel gear 24Regulates both directions of rotation
Therefore, the required space occupied by the stopper body 31 is reduced.
Can be Because of this, its smaller space
The thickness of the projections 29 and 30 that contact the stopper body 31 in minutes
The projections 29 and 30 can be large.
Increase the strength so that the body can withstand the impact of a stop.
And the projections 29 and 30 are formed.
No need for the ohm wheel gear 24 itself
Therefore, the worm wheel gear 24 is made of a lightweight material such as resin.
Can be formed.

As shown in FIGS. 3 and 8, the motor 1
2 is held by a housing 7 and a cover 8. The motor 12 is provided with a rotating shaft 22, and a worm gear 23 is fixed to the rotating shaft 22 so as to rotate integrally. The tip of the rotating shaft 22 is rotatably supported by a bearing 32 formed on the cover 8 . As a result, it is possible to prevent the rotating shaft 22 from bending due to a reaction force applied to the worm gear 23 against a load applied to the worm wheel gear 24 during operation.
The normal meshing state between the worm gear 23 and the worm wheel gear 24 can be maintained. Also, worm gear
The reaction force applied to the worm gear 23 is converted by the selection of the tooth streak of the worm gear 23 so as to be applied only in the direction of the cover 8 side.
are doing. For this reason, the tip of the rotating shaft 22 and the shaft 11
Can be arranged so as to overlap in the thickness direction, and the arrangement positions of the motor 12 and the worm gear 23 are not limited. Thereby, the motor 12
Can be arranged above and vertically with respect to the axis of the shaft 11, and as shown in FIG. As a result, Case 6
In addition, the moment load due to a heavy object such as the motor 12 applied to the panel 4 can be reduced, and the case 6 and the panel 4 do not need to be reinforced and can be formed of a resin material. As a result, the locking mechanism 5 itself, and thus the vehicle weight, is reduced. The motor 12 is the shaft 1
1 so that the stopper member 18 is temporarily provided.
Even if dust, water, gasoline vapor, and the like enter the case 6 over the lip portion 18b of the
There is no contact with the brushes and the like, so that corrosion of electric parts and the like can be prevented. Incidentally, as shown in FIG.
A vent 34 communicating the internal space 10 with the outside is provided below the
Are formed. As a result, dust, water, gasoline vapor, and the like that have entered the case 6 can be extracted to the outside.

A cap 35 made of an elastic material is fixed between the rotating shaft 22 of the motor 12 and the bearing 32 so as to be fixed to the rotating shaft 22. As shown in FIG. 15, a projection 35 for fixing the inner diameter of the cap 35 to the rotating shaft 22 is slightly larger than the outer diameter of the rotating shaft 22.
5b is formed to prevent the cap 35 from coming off the rotary shaft 22. By providing the cap 35, it is possible to prevent the motor 12 from vibrating in the vertical direction due to the vibration of the vehicle or the like, thereby preventing abnormal wear or abnormal noise in the brush portion of the motor 12. it can. Furthermore, when the worm wheel gear 24 is turned from the worm wheel gear 24 to the worm gear 23, the rotation torque generated on the rotation shaft 22 that moves toward the tip end of the rotation shaft 22 is suppressed low to reduce the operating resistance due to this movement. Can be. Thus, the output of the spring 19 can be reduced and the size of the spring 19 can be reduced, and the output of the motor 12 can be reduced and the motor 12 can be reduced in size.

As shown in FIG. 3, the terminals of the motor 12 are housed in a connector 37 formed by the housing 7 and the cover 8. Next, the operation of the above-described lid lock device will be described. 1 to 3 show the closed state of the opening 2 in which the lid body 3 is located at the closed position. The shaft 11 projects by receiving the urging force of the spring 19, and engages with the engaging recess 3a of the lid body 3 to form the lid. Body 3 is held in the closed position. In this state, when the motor 12 is operated, the worm wheel gear 24 rotates in one direction via the rotation shaft 22 and the worm gear 23. The rotation of the worm wheel gear 24 in one direction causes the cam portion 28 to rotate.
The shaft 11 comes into contact with the contact wall 11c, and the shaft 11 receives the rotating power of the worm wheel gear 24 and retreats in the immersion direction (leftward in FIG. 3) against the urging force of the spring 19. As a result, the engagement between the engagement recess 3a and the shaft 11 is released, and the holding of the lid 3 at the closed position is released. The rotation of the worm wheel gear 24 in one direction is performed by the worm wheel gear 2.
4 is restricted by the contact between the protrusion 29 of the fourth member and the stopper body 31, and when this is detected, the operation of the motor 12 is stopped. When the operation of the motor 12 stops, the shaft 11 advances in the projecting direction by receiving the urging force of the spring 19, and returns to the initial state. At this time, the worm wheel gear 24 is also
Through the contact between the worm gear 8 and the contact wall 11c, the worm gear 23 is turned in the other direction by dragging the worm gear 23 and the rotating shaft 22 by the selection of the advance angle of the worm gear 23, and returns to the initial state.
The rotation of the worm wheel gear 24 in the other direction is caused by the protrusion 3
It is regulated by the contact of the stop 0 with the stopper body 31 and returns to the initial position without fail. Thereby, even in the next operation, the operation can be performed with substantially the same operation time as that in the previous operation, and the operator does not feel uncomfortable.

[0023]

The present invention relates to a lock device for a lid lock device.
The structure and the drive mechanism are attached to the housing and
Polymerized in the direction to cooperate with the housing
A cover to be formed;
A shaft whose tip projects from the internal space;
The shaft center above the shaft and the axis is
Perpendicular to the axis of the shaft and parallel to the mounting surface
And a motor arranged inside the internal space.
Movably arranged and linked to the motor and shaft
A gear mechanism, the shaft and the how in the internal space.
Between the shaft and the shaft
Since it is configured to have a spring that is always energized, the following effects can be obtained.

Put the lid lock device in the axial direction of the shaft.
In this case, the load can be reduced, and the moment load due to the weight of the drive mechanism applied to the locking mechanism and the mounting surface can be reduced, so that the locking mechanism and the mounting surface can be formed of a light material such as resin without the need for reinforcement. . Therefore, the weight of the vehicle can be relatively reduced. Also dust
Motor brush even if water or water enters the interior space
There is no contact with etc.
it can.

Also, the spring is connected to the shaft in the internal space.
A link between the shaft and the gear mechanism is provided between the shaft and the housing.
Parallel to the shaft at a position offset from the engaging part
, The locking mechanism itself can be downsized in the axial direction of the shaft . As a result, the weight, weight of the locking mechanism itself applied to the housing, the cover and the mounting surface can be reduced, and the housing, the cover and the mounting surface can be made of resin.

Further, a guide wall formed parallel to the direction of movement of the shaft and abutting on the peripheral surface of the shaft is provided at a position opposite to the spring with respect to a link between the shaft and the gear mechanism of the housing. With this arrangement, the vertical rotation of the shaft during the forward / backward movement of the shaft due to the offset arrangement of the spring with respect to the connection between the shaft and the gear can be restricted.

In addition, since the housing has a through hole formed below the motor in the housing so as to allow the internal space to communicate with the outside, dust, water, gasoline vapor, etc., which have entered the internal space. Can be efficiently pulled out to the outside.

[Brief description of the drawings]

FIG. 1 is a plan view showing a mounted state of a lid lock device according to the present invention.

FIG. 2 is a bottom view showing a mounted state of the lid lock device according to the present invention.

FIG. 3 is a plan view of the rod lock device according to the present invention.

FIG. 4 is a cross-sectional view of FIG.

FIG. 5 is a plan view of the shaft.

FIG. 6 is a front view of the shaft.

FIG. 7 is a partial cross-sectional view of FIG. 3 showing a locked state of a spring.

FIG. 8 is a partial longitudinal sectional view of FIG. 3 showing a locked state of a spring.

FIG. 9 is a partial sectional view of a guide member.

FIG. 10 is a plan view of the stopper member.

11 is a longitudinal sectional view of FIG.

FIG. 12 shows a worm wheel gear support structure.
FIG.

FIG. 13 is a plan view of the worm wheel gear.

FIG. 14 is a sectional view of FIG.

FIG. 15 is a sectional view of the cap.

[Explanation of symbols]

 Reference Signs List 1 vehicle body 3 lid body 4 panel (mounting surface) 5 locking mechanism 7 housing 8 cover 11 shaft 12 motor (drive mechanism) 13 gear mechanism 19 spring

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takeshi Oe 2-1-1 Asahimachi, Kariya City, Aichi Pref. Aisin Seiki Co., Ltd. Examiner, Yukiko Arai (56) U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) E05B 65/12-65/42 E05B 47/00

Claims (4)

(57) [Claims] 1. A vehicle body, a lid body for opening and closing an opening formed in the vehicle body, a mounting surface formed in the vehicle body, and fixed to the mounting surface to hold the lid body in a closed position. A lid lock device comprising: a lock mechanism; and a drive mechanism that is held by the lock mechanism and that operates the lock mechanism to release the lid body from being held at a closed position, wherein the lock mechanism and the drive mechanism include a housing.
And the housing is polymerized in the thickness direction on the housing.
A cover forming an internal space in cooperation with the
It is arranged to be able to advance and retreat in the space, and the tip protrudes from the internal space
Shaft above the shaft in the interior space.
And the axis is perpendicular to the axis of the shaft; and
A motor arranged to be parallel to the mounting surface
And the motor and the motor rotatably disposed in the internal space.
A gear mechanism linked to the shaft and
The system is provided between the shaft and the housing.
And a spring that always urges the shaft in the projecting direction.
And it was constructed, the lid locking device. 2. The spring includes a shaft and the gear.
At a position offset with respect to the link with the gear mechanism.
2. The lid lock device according to claim 1, wherein the lid lock device is disposed in parallel with the shaft . 3. A guide wall formed parallel to the direction of movement of the shaft at a position opposite to the spring with respect to a link between the shaft and the gear mechanism of the housing, the guide wall being in contact with a peripheral surface of the shaft. 3. The rod lock apparatus according to claim 2, further comprising: 4. The lid lock apparatus according to claim 1, further comprising a through hole to the communicating state and formed in lower portion the inner space and the outside than the motor of the housing.